I tore the Tailgate apart and still could not identify the culprit.

To the left behind the spare wheel is the mechanism for the antenna.
To the right behind jack/emergency kit is vacuum lines and so on.

On the actual Tailgate I was only able to identify (license plate light assemblies, latch, locks and rear wiper motor mechanisms)

On the ceiling of the actual tailgate (liner) all that was identified was the tailgate wiring connection point (of which the dome light does not connect to)

On my Repair manual electrical diagram it talks about a Tailgate contact switch that I can not locate..

I must add that the actual diagram is like paddy cake to a person with out arms. I cant read those things for nothing in the world.

What am I missing????